Can you give me marketing advice?
Do all your sites comply with latest legal requirements?
Can you give client references?
Will my contact be an account manager or a developer?
Is the customer support any good?
Is the hosting service reliable and properly maintained?
Can you write copy?
Copywriting is an important element of website development.
It is important because often your corporate literature is not necessarily web friendly and your website should be structured to work on screen rather than on paper.
Search engines need to be considered as well, as the content is one of the key elements when it comes to ranking.